I had that experience crossing the North Cascades Highway west to east. I was sitting on the ground atop Washington Pass because there was too much snow plowed to pull off the road. I was changing my sweaty jersey and putting on layers for the long descent. A couple drove up from the east and stopped. After they got out of the car they stared at me in silent disbelief. We were the only 3 people around. I wondered what they thought when they kept heading west and saw what I had come up.